Crankcase breathers are an essential part of any modern diesel engine. But what do these breathers do and why are they so ...

The crankcase heater is an electric resistance heater that is usually strapped on, clamped to the crankcase bottom, or inserted into a well within the compressor’s crankcase. The crankcase heater is ...

The PCV valve not only improves vehicle emissions, but also engine efficiency, reliability, and power. By redirecting the blow-by gasses back into the intake to be burned, the engine can receive as ...

In addition, the low-level vacuum draws in fresh air to the crankcase from the crankcase breather. In 99% of normal driving conditions, this is how a properly functioning PCV system works.

Reducing crankcase pressure under load should be a high priority in a performance engine. This also explains why top-tier racing engines use multiple stages of scavenging on their dry sump systems.

Overfilling the crankcase by half a quart or so is nowhere near enough to cause this problem. On older engines, excessive blow-by can be caused by piston rings that are all worn out and let too much ...

Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace ...

QUESTION: I have a boat powered with a 5.7 liter V-8 inboard engine. The crankcase hoses that go from the top of the valve covers and vent into the carburetor are always blowing steam. The engine h… ...

Kawasaki have issued a recall notice across the UK and Europe for ZX-6R supersport models produced in 2024 and 2025.

Essentially, this crankcase works for most every 911 built from 1984 to 1998, save for ultra-rare 3.8-liter variants of the 964 and 993. Additionally, Porsche Classic is now selling entirely new ...

That may be a pricey bit of OEM equipment, yet if you’re in the process of rebuilding a Carrera 3.2, a 964 or a 993, this is your best chance of getting a quality crankcase for your flat-six.